A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.
Published 2019-12-11 15:15:14
Updated 2023-03-01 16:40:04
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2019-14899

Exploit prediction scoring system (EPSS) score for CVE-2019-14899

0.08%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-14899

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.9
MEDIUM AV:A/AC:M/Au:S/C:P/I:P/A:P
4.4
6.4
NIST
7.4
HIGH CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
1.5
5.9
Red Hat, Inc.
7.4
HIGH CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
1.5
5.9
NIST

CWE ids for CVE-2019-14899

  • The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint.
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2019-14899

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